boards: Enable LTO option for same70-xplained/mcuboot-loader

Avoid compilation errors due to insufficient flash in CI

Configuration/Tool: same70-xplained/mcuboot-loader,CONFIG_ARM_TOOLCHAIN_GNU_EABI
2024-10-14 16:17:34
arm-none-eabi-ld: /github/workspace/sources/nuttx/nuttx section `.ramfunc' will not fit in region `flash'
arm-none-eabi-ld: region `flash' overflowed by 52 bytes
arm-none-eabi-ld: warning: /github/workspace/sources/nuttx/nuttx has a LOAD segment with RWX permissions
make[1]: *** [Makefile:212: nuttx] Error 1
make: *** [tools/Unix.mk:551: nuttx] Error 2
make: Target 'all' not remade because of errors.

Signed-off-by: yinshengkai <yinshengkai@xiaomi.com>

boards/arm/samv7/same70-xplained/configs/mcuboot-loader/defconfig

@@ -42,6 +42,7 @@ CONFIG_FAT_LFN=y
 CONFIG_FS_FAT=y
 CONFIG_FS_PROCFS=y
 CONFIG_INIT_ENTRYPOINT="mcuboot_loader_main"
+CONFIG_LTO_FULL=y
 CONFIG_MCUBOOT_BOOTLOADER=y
 CONFIG_MCUBOOT_ENABLE_LOGGING=y
 CONFIG_MMCSD_MULTIBLOCK_LIMIT=1